Package org.apache.jena.arq.querybuilder

Class ExprFactory

java.lang.Object

org.apache.jena.arq.querybuilder.ExprFactory

public class ExprFactory
extends Object

Create expressions. NodeValue contains a number of static functions to make a number of node functions.

See Also:

• Function names here map as closely as possible to the tag names for the generated expression.

Constructor Summary

Constructors

Constructor	Description
ExprFactory()	Constructs an expression factory with the prefix definitions found in PrefixMapping.Extended
ExprFactory(PrefixMapping pMap)	Constructs an expression factor with the specified prefix definitions.

Method Summary

Modifier and Type	Method	Description
final E_NumAbs	abs(Object expr)	implements abs() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-abs Converts expr to an Expr object via expr()
final E_Add	add(Object expr1, Object expr2)	implements addition as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final E_LogicalAnd	and(Object expr1, Object expr2)	implements logical and as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final Expr	asExpr(Object o)	Convert the object into an expression using the query's PrefixMapping
static final Expr	asExpr(Object o, PrefixMapping pMap)	Create an expression from an object.
final ExprList	asList(Object... args)	Not really an Expr but a container of exprs.
final ExprVar	asVar(Object o)	Converts the object to a ExprVar.
final Expr	bnode()	implements bnode() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-bnode
final Expr	bnode(Object expr1)	implements bnode() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-bnode Converts expr to an Expr object via expr()
final E_Bound	bound(Object expr)	implements bound() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-bound Converts expr to an Expr object via expr()
final E_FunctionDynamic	call(Object function, Object... args)	Creates a dynamic function call.
final E_FunctionDynamic	call(Object function, ExprList args)	Creates a dynamic function call.
final E_Call	call(ExprList args)	Creates a function call as per the SPARQL 11 query definition.
final E_NumCeiling	ceil(Object expr)	implements ceil() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-ceil Converts expr to an Expr object via expr()
final E_Coalesce	coalesce(Object... args)	implements coalesce() as per the SPARQL 11 query definition.
final E_Coalesce	coalesce(ExprList args)	implements coalesce() as per the SPARQL 11 query definition.
final E_StrConcat	concat(Object... list)	implements concat() as per the SPARQL 11 query definition.
final E_StrConcat	concat(ExprList list)	implements concat() as per the SPARQL 11 query definition.
final E_Conditional	cond(Expr condition, Expr thenExpr, Expr elseExpr)	implements if() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-if Converts expr to an Expr object via expr()
final E_StrContains	contains(Object expr1, Object expr2)	implements contains() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-contains Converts expr to an Expr object via expr()
final E_Datatype	datatype(Object expr)	implements datatype() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-datatype Converts expr to an Expr object via expr()
final E_DateTimeDay	day(Object expr)	implements day() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-day Converts expr to an Expr object via expr()
final E_Divide	divide(Object expr1, Object expr2)	implements division as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final E_StrEncodeForURI	encode(Object expr)	implements encode() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-encode Converts expr to an Expr object via expr()
final E_Equals	eq(Object expr1, Object expr2)	implements equality as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final E_Exists	exists(WhereClause<?> whereClause)	implements exists() as per the SPARQL 11 query definition.
final E_NumFloor	floor(Object expr)	implements floor() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-floor Converts expr to an Expr object via expr()
final E_Function	function(String name, ExprList args)	Creates a function call as per the SPARQL 11 query definition.
final E_GreaterThanOrEqual	ge(Object expr1, Object expr2)	implements greater than or equal as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final E_GreaterThan	gt(Object expr1, Object expr2)	implements greater than as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final E_DateTimeHours	hours(Object expr)	implements hours() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-hours Converts expr to an Expr object via expr()
final E_OneOf	in(Object expr, Object... list)	implements "in" as per the SPARQL 11 query definition.
final E_OneOf	in(Object expr, ExprList list)	implements "in" as per the SPARQL 11 query definition.
final E_IRI	iri(Object expr)	implements iri() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-iri Converts expr to an Expr object via expr()
final E_IsBlank	isBlank(Object expr)	implements isBlank() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-isBlank Converts expr to an Expr object via expr()
final E_IsIRI	isIRI(Object expr)	implements isIRI() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-isIRI Converts expr to an Expr object via expr()
final E_IsLiteral	isLiteral(Object expr)	implements isLiteral() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-isLiteral Converts expr to an Expr object via expr()
final E_IsNumeric	isNumeric(Object expr)	implements isNumeric() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-isNumeric Converts expr to an Expr object via expr()
final E_Lang	lang(Object expr)	implements lang() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-lang Converts expr to an Expr object via expr()
final E_LangMatches	langMatches(Object expr1, Object expr2)	implements langMatches() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-langMatches Converts expr to an Expr object via expr()
final E_StrLowerCase	lcase(Object expr)	implements lcase() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-lcase Converts expr to an Expr object via expr()
final E_LessThanOrEqual	le(Object expr1, Object expr2)	implements less than or equal as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final ExprList	list()	Not really an Expr but a container of exprs.
final E_LessThan	lt(Object expr1, Object expr2)	implements less than as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final E_MD5	md5(Object expr)	implements md5() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-md5 Converts expr to an Expr object via expr()
final E_UnaryMinus	minus(Object expr)	implements unary minus as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final E_DateTimeMinutes	minutes(Object expr)	implements minutes() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-minutes Converts expr to an Expr object via expr()
final E_DateTimeMonth	month(Object expr)	implements month() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-month Converts expr to an Expr object via expr()
final E_Multiply	multiply(Object expr1, Object expr2)	implements multiplication s per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final E_NotEquals	ne(Object expr1, Object expr2)	implements not equals as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final ExprNone	none()	Should probably be called "null" but that is a reserved work.
final E_LogicalNot	not(Object expr)	implements not() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-not Converts expr to an Expr object via expr()
final E_NotExists	notexists(WhereClause<?> whereClause)	implements not exists() as per the SPARQL 11 query definition.
final E_NotOneOf	notin(Object expr, Object... list)	implements "not in" as per the SPARQL 11 query definition.
final E_NotOneOf	notin(Object expr, ExprList list)	implements "not in" as per the SPARQL 11 query definition.
final E_Now	now()	implements now() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-now
final E_LogicalOr	or(Object expr1, Object expr2)	implements logical or as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final E_UnaryPlus	plus(Object expr)	implements unary plus as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final String	quote(String s)	Deprecated. use Converters.quoted(String)
final E_Random	rand()	implements rand() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-rand
final E_Regex	regex(Object expr, Object pattern, Object flags)	implements regex() as per the SPARQL 11 query definition.
final E_Regex	regex(Object expr, String pattern, String flags)	implements regex() as per the SPARQL 11 query definition.
final E_StrReplace	replace(Object arg, Object pattern, Object replacement)	implements replace() as per the SPARQL 11 query definition.
final E_StrReplace	replace(Object arg, Object pattern, Object replacement, Object flags)	implements replace() as per the SPARQL 11 query definition.
final E_NumRound	round(Object expr)	implements round() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-round Converts expr to an Expr object via expr()
final E_SameTerm	sameTerm(Object expr1, Object expr2)	implements sameTerm() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sameTerm Converts expr to an Expr object via expr()
final E_DateTimeSeconds	seconds(Object expr)	implements seconds() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-seconds Converts expr to an Expr object via expr()
final E_SHA1	sha1(Object expr)	implements sha1() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sha1 Converts expr to an Expr object via expr()
final E_SHA224	sha224(Object expr)	implements sha224() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sha224 Converts expr to an Expr object via expr()
final E_SHA256	sha256(Object expr)	implements sha256() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sha256 Converts expr to an Expr object via expr()
final E_SHA384	sha384(Object expr)	implements sha384() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sha384 Converts expr to an Expr object via expr()
final E_SHA512	sha512(Object expr)	implements sha512() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sha512 Converts expr to an Expr object via expr()
final E_Str	str(Object expr)	implements str() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-str Converts expr to an Expr object via expr()
final E_StrAfter	strafter(Object expr1, Object expr2)	implements strafter() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strafter Converts expr to an Expr object via expr()
final E_StrBefore	strbefore(Object expr1, Object expr2)	implements strbefore() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strbefore Converts expr to an Expr object via expr()
final E_StrDatatype	strdt(Object expr1, Object expr2)	implements strdt() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strdt Converts expr to an Expr object via expr()
final E_StrEndsWith	strends(Object expr1, Object expr2)	implements strends() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strends Converts expr to an Expr object via expr()
final E_StrLang	strlang(Object expr1, Object expr2)	implements strlang() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strlang Converts expr to an Expr object via expr()
final E_StrLength	strlen(Object expr)	implements strlen() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strlen Converts expr to an Expr object via expr()
final E_StrStartsWith	strstarts(Object expr1, Object expr2)	implements strstarts() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strstarts Converts expr to an Expr object via expr()
final E_StrUUID	struuid()	implements struuid() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-struuid
final E_StrSubstring	substr(Object src, Object loc)	implements substr() as per the SPARQL 11 query definition.
final E_StrSubstring	substr(Object src, Object loc, Object len)	implements substr() as per the SPARQL 11 query definition.
final E_Subtract	subtract(Object expr1, Object expr2)	implements subtraction as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()
final E_DateTimeTimezone	timezone(Object expr)	implements timezone() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-timezone Converts expr to an Expr object via expr()
final E_DateTimeTZ	tz(Object expr)	implements tz() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-tz Converts expr to an Expr object via expr()
final E_StrUpperCase	ucase(Object expr)	implements ucase() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-ucase Converts expr to an Expr object via expr()
final E_UUID	uuid()	implements uuid() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-uuid
final E_Version	version()	Returns the current ARQ name and version number as a string.
final E_DateTimeYear	year(Object expr)	implements year() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-year Converts expr to an Expr object via expr()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ExprFactory

public ExprFactory(PrefixMapping pMap)

Constructs an expression factor with the specified prefix definitions.

Parameters:

pMap - the PrefixMapping to use in the expressions.

ExprFactory

public ExprFactory()

Constructs an expression factory with the prefix definitions found in PrefixMapping.Extended

See Also:

• PrefixMapping.Extended

Method Details

rand

public final E_Random rand()

implements rand() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-rand

Returns:

E_Random instance

See Also:

• E_Random

struuid

public final E_StrUUID struuid()

implements struuid() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-struuid

Returns:

E_StrUUID instance

See Also:

• E_StrUUID

uuid

public final E_UUID uuid()

implements uuid() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-uuid

Returns:

E_UUID instance

See Also:

• E_UUID

version

public final E_Version version()

Returns the current ARQ name and version number as a string.

Returns:

E_Version instance

See Also:

• E_Version

now

public final E_Now now()

implements now() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-now

Returns:

E_Now instance

See Also:

• E_Now

bound

public final E_Bound bound(Object expr)

implements bound() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-bound Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_Bound instance

See Also:

• asExpr(Object)
• E_Bound

datatype

public final E_Datatype datatype(Object expr)

implements datatype() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-datatype Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_Datatype instance

See Also:

• asExpr(Object)
• E_Datatype

day

public final E_DateTimeDay day(Object expr)

implements day() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-day Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_Datatype instance

See Also:

• asExpr(Object)

hours

public final E_DateTimeHours hours(Object expr)

implements hours() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-hours Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_DateTimeHours instance

See Also:

• asExpr(Object)
• E_DateTimeHours

minutes

public final E_DateTimeMinutes minutes(Object expr)

implements minutes() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-minutes Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_DateTimeMinutes instance

See Also:

• asExpr(Object)
• E_DateTimeMinutes

month

public final E_DateTimeMonth month(Object expr)

implements month() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-month Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_DateTimeMonth instance

See Also:

• asExpr(Object)
• E_DateTimeMonth

seconds

public final E_DateTimeSeconds seconds(Object expr)

implements seconds() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-seconds Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_DateTimeSeconds instance

See Also:

• asExpr(Object)
• E_DateTimeSeconds

timezone

public final E_DateTimeTimezone timezone(Object expr)

implements timezone() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-timezone Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_DateTypeTimezone instance

See Also:

• asExpr(Object)
• E_DateTimeTimezone

tz

public final E_DateTimeTZ tz(Object expr)

implements tz() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-tz Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_DateTimeTZ instance

See Also:

• asExpr(Object)
• E_DateTimeTZ

year

public final E_DateTimeYear year(Object expr)

implements year() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-year Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_DateTimeYear instance

See Also:

• asExpr(Object)
• E_DateTimeYear

iri

public final E_IRI iri(Object expr)

implements iri() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-iri Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_IRI instance

See Also:

• asExpr(Object)
• E_IRI

isBlank

public final E_IsBlank isBlank(Object expr)

implements isBlank() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-isBlank Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_isBlank instance

See Also:

• asExpr(Object)
• E_IsBlank

isIRI

public final E_IsIRI isIRI(Object expr)

implements isIRI() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-isIRI Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_IsIRI instance

See Also:

• asExpr(Object)
• E_IsIRI

isLiteral

public final E_IsLiteral isLiteral(Object expr)

implements isLiteral() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-isLiteral Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_IsLiteral instance

See Also:

• asExpr(Object)
• E_IsLiteral

isNumeric

public final E_IsNumeric isNumeric(Object expr)

implements isNumeric() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-isNumeric Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_IsNumeric instance

See Also:

• asExpr(Object)
• E_IsNumeric

lang

public final E_Lang lang(Object expr)

implements lang() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-lang Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_Lang instance

See Also:

• asExpr(Object)
• E_Lang

not

public final E_LogicalNot not(Object expr)

implements not() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-not Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_LogicalNot instance

See Also:

• asExpr(Object)
• E_LogicalNot

abs

public final E_NumAbs abs(Object expr)

implements abs() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-abs Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_NumAbs instance

See Also:

• asExpr(Object)
• E_NumAbs

ceil

public final E_NumCeiling ceil(Object expr)

implements ceil() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-ceil Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_NumCeiling instance

See Also:

• asExpr(Object)
• E_NumCeiling

floor

public final E_NumFloor floor(Object expr)

implements floor() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-floor Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_NumFloor instance

See Also:

• asExpr(Object)
• E_NumFloor

round

public final E_NumRound round(Object expr)

implements round() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-round Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_Round instance

See Also:

• asExpr(Object)
• E_NumRound

str

public final E_Str str(Object expr)

implements str() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-str Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_Str instance

See Also:

• asExpr(Object)
• E_Str

encode

public final E_StrEncodeForURI encode(Object expr)

implements encode() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-encode Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_StrEncodedForURI instance

See Also:

• asExpr(Object)
• E_StrEncodeForURI

strlen

public final E_StrLength strlen(Object expr)

implements strlen() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strlen Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_StrLength instance

See Also:

• asExpr(Object)
• E_StrLength

lcase

public final E_StrLowerCase lcase(Object expr)

implements lcase() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-lcase Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_StrLowerCase instance

See Also:

• asExpr(Object)
• E_StrLowerCase

ucase

public final E_StrUpperCase ucase(Object expr)

implements ucase() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-ucase Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_StrUpperCase instance

See Also:

• asExpr(Object)
• E_StrUpperCase

minus

public final E_UnaryMinus minus(Object expr)

implements unary minus as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_UnaryMinus instance

See Also:

• asExpr(Object)
• E_UnaryMinus

plus

public final E_UnaryPlus plus(Object expr)

implements unary plus as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_UnaryPlus instance

See Also:

• asExpr(Object)
• E_UnaryPlus

md5

public final E_MD5 md5(Object expr)

implements md5() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-md5 Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_MD5 instance

See Also:

• asExpr(Object)
• E_MD5

sha1

public final E_SHA1 sha1(Object expr)

implements sha1() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sha1 Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_SHA1 instance

See Also:

• asExpr(Object)
• E_SHA1

sha224

public final E_SHA224 sha224(Object expr)

implements sha224() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sha224 Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_SHA224 instance

See Also:

• asExpr(Object)
• E_SHA224

sha256

public final E_SHA256 sha256(Object expr)

implements sha256() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sha256 Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_SHA256 instance

See Also:

• asExpr(Object)
• E_SHA256

sha384

public final E_SHA384 sha384(Object expr)

implements sha384() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sha384 Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_SHA384 instance

See Also:

• asExpr(Object)
• E_SHA384

sha512

public final E_SHA512 sha512(Object expr)

implements sha512() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sha512 Converts expr to an Expr object via expr()

Parameters:

expr - the expression to check.

Returns:

E_SHA512 instance

See Also:

• asExpr(Object)
• E_SHA512

add

public final E_Add add(Object expr1,
 Object expr2)

implements addition as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_Add instance

See Also:

• asExpr(Object)
• E_Add

divide

public final E_Divide divide(Object expr1,
 Object expr2)

implements division as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_Devide instance

See Also:

• asExpr(Object)
• E_Divide

eq

public final E_Equals eq(Object expr1,
 Object expr2)

implements equality as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_Equals instance

See Also:

• asExpr(Object)
• E_Equals

gt

public final E_GreaterThan gt(Object expr1,
 Object expr2)

implements greater than as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_GreaterThan instance

See Also:

• asExpr(Object)
• E_GreaterThan

ge

public final E_GreaterThanOrEqual ge(Object expr1,
 Object expr2)

implements greater than or equal as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_GreaterThanOrEqual instance

See Also:

• asExpr(Object)
• E_GreaterThanOrEqual

langMatches

public final E_LangMatches langMatches(Object expr1,
 Object expr2)

implements langMatches() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-langMatches Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_LangMatches instance

See Also:

• asExpr(Object)
• E_LangMatches

lt

public final E_LessThan lt(Object expr1,
 Object expr2)

implements less than as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_LessThan instance

See Also:

• asExpr(Object)
• E_LessThan

le

public final E_LessThanOrEqual le(Object expr1,
 Object expr2)

implements less than or equal as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_LessThanOrEqual instance

See Also:

• asExpr(Object)
• E_LessThanOrEqual

and

public final E_LogicalAnd and(Object expr1,
 Object expr2)

implements logical and as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_LogicalAnd instance

See Also:

• asExpr(Object)
• E_LogicalAnd

or

public final E_LogicalOr or(Object expr1,
 Object expr2)

implements logical or as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_LogicalOr instance

See Also:

• asExpr(Object)
• E_LogicalOr

multiply

public final E_Multiply multiply(Object expr1,
 Object expr2)

implements multiplication s per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_Multiply instance

See Also:

• asExpr(Object)
• E_Multiply

ne

public final E_NotEquals ne(Object expr1,
 Object expr2)

implements not equals as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_NotEquals instance

See Also:

• asExpr(Object)
• E_NotEquals

sameTerm

public final E_SameTerm sameTerm(Object expr1,
 Object expr2)

implements sameTerm() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-sameTerm Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_SameTerm instance

See Also:

• asExpr(Object)
• E_SameTerm

strafter

public final E_StrAfter strafter(Object expr1,
 Object expr2)

implements strafter() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strafter Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_StrAfter instance

See Also:

• asExpr(Object)
• E_StrAfter

strbefore

public final E_StrBefore strbefore(Object expr1,
 Object expr2)

implements strbefore() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strbefore Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_StrBefore instance

See Also:

• asExpr(Object)
• E_StrBefore

contains

public final E_StrContains contains(Object expr1,
 Object expr2)

implements contains() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-contains Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_StrContains instance

See Also:

• asExpr(Object)
• E_StrContains

strdt

public final E_StrDatatype strdt(Object expr1,
 Object expr2)

implements strdt() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strdt Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_StrDatatype instance

See Also:

• asExpr(Object)
• E_StrDatatype

strends

public final E_StrEndsWith strends(Object expr1,
 Object expr2)

implements strends() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strends Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_StrEndsWith instance

See Also:

• asExpr(Object)
• E_StrEndsWith

strlang

public final E_StrLang strlang(Object expr1,
 Object expr2)

implements strlang() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strlang Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_StrLang instance

See Also:

• asExpr(Object)
• E_StrLang

strstarts

public final E_StrStartsWith strstarts(Object expr1,
 Object expr2)

implements strstarts() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-strstarts Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_StrStartsWith instance

See Also:

• asExpr(Object)
• E_StrStartsWith

subtract

public final E_Subtract subtract(Object expr1,
 Object expr2)

implements subtraction as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#OperatorMapping Converts expr to an Expr object via expr()

Parameters:

expr1 - the first expression.

expr2 - the second expression.

Returns:

E_Subtract instance

See Also:

• asExpr(Object)
• E_Subtract

cond

public final E_Conditional cond(Expr condition,
 Expr thenExpr,
 Expr elseExpr)

implements if() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-if Converts expr to an Expr object via expr()

Parameters:

condition - the condition to check.

thenExpr - the expression to execute if condition is true.

elseExpr - the expression to execute if condition is false.

Returns:

an E_Conditional instance.

See Also:

• asExpr(Object)
• E_Conditional

bnode

public final Expr bnode(Object expr1)

implements bnode() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-bnode Converts expr to an Expr object via expr()

Parameters:

expr1 - the blank node id.

Returns:

an Expr instance

See Also:

• asExpr(Object)
• E_BNode

bnode

public final Expr bnode()

implements bnode() as per SPARQL 1.1 spec https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-bnode

Returns:

an Expr instance.

See Also:

• E_BNode

call

public final E_FunctionDynamic call(Object function,
 ExprList args)

Creates a dynamic function call. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#rFunctionCall Converts function to an Expr object via expr()

Parameters:

function - The function to execute

args - the arguments to the function.

Returns:

an E_FunctionDynamic instance.

See Also:

• asExpr(Object)
• E_FunctionDynamic

call

public final E_FunctionDynamic call(Object function,
 Object... args)

Creates a dynamic function call. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#rFunctionCall Converts function to an Expr object via expr()

Parameters:

function - The function to execute

args - the arguments to the function.

Returns:

an E_FunctionDynamic instance.

See Also:

• asExpr(Object)
• E_FunctionDynamic

call

public final E_Call call(ExprList args)

Creates a function call as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#rFunctionCall

Parameters:

args - the arguments to the function.

Returns:

an E_Call instance.

See Also:

• The first argument is the function to call

coalesce

public final E_Coalesce coalesce(ExprList args)

implements coalesce() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-coalesce

Parameters:

args - the arguments to the function.

Returns:

an E_Coalesce instance.

See Also:

• E_Coalesce

coalesce

public final E_Coalesce coalesce(Object... args)

implements coalesce() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-coalesce

Parameters:

args - the arguments to the function.

Returns:

an E_Coalesce instance.

See Also:

• E_Coalesce

function

public final E_Function function(String name,
 ExprList args)

Creates a function call as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#rFunctionCall

Parameters:

name - the name of the function.

args - the arguments to the function.

Returns:

an E_Function instance.

See Also:

• E_Function

notin

public final E_NotOneOf notin(Object expr,
 ExprList list)

implements "not in" as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-not-in Converts expr to an Expr object via expr()

Parameters:

expr - the expression that is not in the list

list - the list of expressions.

Returns:

an E_NotOneOf instance.

See Also:

• asExpr(Object)
• E_NotOneOf

notin

public final E_NotOneOf notin(Object expr,
 Object... list)

implements "not in" as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-not-in Converts expr to an Expr object via expr()

Parameters:

expr - the expression that is not in the list

list - the list of expressions.

Returns:

an E_NotOneOf instance.

See Also:

• asExpr(Object)
• E_NotOneOf

in

public final E_OneOf in(Object expr,
 ExprList list)

implements "in" as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-in Converts expr to an Expr object via expr()

Parameters:

expr - the expression that is not in the list

list - the list of expressions.

Returns:

an E_OneOf instance.

See Also:

• asExpr(Object)
• E_OneOf

in

public final E_OneOf in(Object expr,
 Object... list)

implements "in" as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-in Converts expr to an Expr object via expr()

Parameters:

expr - the expression that is not in the list

list - the list of expressions.

Returns:

an E_OneOf instance.

See Also:

• asExpr(Object)
• E_OneOf

regex

public final E_Regex regex(Object expr,
 Object pattern,
 Object flags)

implements regex() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-regex Converts objects to an Expr objects via expr()

Parameters:

expr - string to match.

pattern - the pattern to match

flags - the regex flags

Returns:

an E_Regex instance.

See Also:

• asExpr(Object)
• E_Regex

regex

public final E_Regex regex(Object expr,
 String pattern,
 String flags)

implements regex() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-regex Converts expr to an Expr object via expr()

Parameters:

expr - string to match.

pattern - the pattern to match

flags - the regex flags

Returns:

an E_Regex instance.

See Also:

• asExpr(Object)
• E_Regex

concat

public final E_StrConcat concat(ExprList list)

implements concat() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-concat

Parameters:

list - the list of arguments to concatenate

Returns:

an E_StrConcat instance

See Also:

• E_StrConcat

concat

public final E_StrConcat concat(Object... list)

implements concat() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-concat

Parameters:

list - the list of arguments to concatenate

Returns:

an E_StrConcat instance

See Also:

• E_StrConcat

replace

public final E_StrReplace replace(Object arg,
 Object pattern,
 Object replacement,
 Object flags)

implements replace() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-replace Converts Objects to an Expr objects via expr()

Parameters:

arg - the string literal to replace

pattern - the pattern to replace in the string literal.

replacement - the string literal to replace the pattern with.

flags - the flags that control replacement options.

Returns:

an E_StrReplace instance

See Also:

• asExpr(Object)
• E_StrReplace

replace

public final E_StrReplace replace(Object arg,
 Object pattern,
 Object replacement)

implements replace() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-replace Converts Objects to an Expr objects via expr()

Parameters:

arg - the string literal to replace

pattern - the pattern to replace in the string literal.

replacement - the string literal to replace the pattern with.

Returns:

an E_StrReplace instance

See Also:

• asExpr(Object)
• E_StrReplace

substr

public final E_StrSubstring substr(Object src,
 Object loc,
 Object len)

implements substr() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-substr Converts Objects to an Expr objects via expr()

Parameters:

src - the expression to extract the substring from.

loc - the location within the expression string to start

len - the length of the string to extract.

Returns:

an E_Substring instance.

See Also:

• asExpr(Object)
• E_StrSubstring

substr

public final E_StrSubstring substr(Object src,
 Object loc)

implements substr() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-substr Converts Objects to an Expr objects via expr()

Parameters:

src - the expression to extract the substring from.

loc - the location within the expression string to start

Returns:

an E_Substring instance.

See Also:

• asExpr(Object)
• E_StrSubstring

exists

public final E_Exists exists(WhereClause<?> whereClause)

implements exists() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-filter-exists

Parameters:

whereClause - A WhereClause to check existence of.

Returns:

an E_Exists instance,

See Also:

• E_Exists

notexists

public final E_NotExists notexists(WhereClause<?> whereClause)

implements not exists() as per the SPARQL 11 query definition. https://www.w3.org/TR/2013/REC-sparql11-query-20130321/#func-filter-exists

Parameters:

whereClause - the argument to the function.

Returns:

an E_NotExists instance.

See Also:

• E_NotExists

none

public final ExprNone none()

Should probably be called "null" but that is a reserved work. An expression that can be used in place of null.

Returns:

an ExprNone instance

See Also:

• ExprNone

asVar

public final ExprVar asVar(Object o)

Converts the object to a ExprVar.

• If the object is an ExprVar return it
• Will return null if the object is "*" or Node_RuleVariable.WILD
• otherwise create an ExprVar from {AbstractQuerybuilder.makeVar}

Parameters:

o - the object to convert.

Returns:

an ExprVar

See Also:

• Converters.makeVar(Object)

asList

public final ExprList asList(Object... args)

Not really an Expr but a container of exprs.

Parameters:

args - the list of expressons.

Returns:

the expression list.

list

public final ExprList list()

Not really an Expr but a container of exprs. creates an empty list.

Returns:

the empty expression list.

asExpr

public final Expr asExpr(Object o)

Convert the object into an expression using the query's PrefixMapping

Parameters:

o - the object to convert.

Returns:

the Expr.

quote

@Deprecated
public final String quote(String s)

Deprecated.

use Converters.quoted(String)

Convenience method to call AbstractQueryBuilder.quote

Parameters:

s - the string to quote

Returns:

the quotes string.

See Also:

• Converters.quoted(String)

asExpr

public static final Expr asExpr(Object o,
 PrefixMapping pMap)

Create an expression from an object. this method does not parse strings to expressions. to parse strings to expressions see {AbstractQueryBuilder.makeExpr}

• If the object is null returns none()
• If the object is an expression return it
• If the object fronts a node and is not a var make a NodeVar
• otherwise calls var()

Parameters:

o - the object to create the expression from

Returns:

Expr

See Also:

• asVar(Object)
• Converters.makeVar(Object)